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Individual Calculations October 2023 |
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| Davis, Lee Total change: -35.60 | |   |
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| 2023 Welsh Seniors Championship | Newport | WLS | 2023-09-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1710 | 1927 | 2.50 | 5 | -1.27 | 20 | -25.40 | |
|  Hurn, Robert Aj | | | 1544 | WLS | 1.00 | 1 | 0.09 | 20 | 1.80 | |  Miles, Richard | | | 1967 | WLS | 0.50 | 1 | 0.06 | 20 | 1.20 | | | Thomas, Mark | | | 1724 | WLS | 0.00 | 1 | -0.76 | 20 | -15.20 | | | Van Kemenade, Julie | | | 1670 | WLS | 0.50 | 1 | -0.32 | 20 | -6.40 | | | Quinn, Peter | | | 1645 | WLS | 0.50 | 1 | -0.34 | 20 | -6.80 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | | World Senior Team Chess Championship 2023 S65 | Struga | MKD | 2023-09-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2221 | 1927 | 0.00 | 3 | -0.47 | 20 | -9.40 | |
| | Roos, Louis | m | | 2253 | FRA | 0.00 | 1 | -0.13 | 20 | -2.60 | | | Goormachtigh, Johan | f | | 2183 | BEL | 0.00 | 1 | -0.19 | 20 | -3.80 | | | Cocozza, Mario | f | | 2226 | ITA | 0.00 | 1 | -0.15 | 20 | -3.00 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | | World Senior Team Chess Championship 2023 S50 | Struga | MKD | 2023-09-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2150 | 1927 | 1.00 | 4 | -0.04 | 20 | -0.80 | |
| | An, Yanfeng | | wm | 2259 | CHN | 0.00 | 1 | -0.12 | 20 | -2.40 | | | Jhunjhnuwala, Ramesh | | | 2088 | USA | 0.50 | 1 | 0.21 | 20 | 4.20 | | | Sapis, Witalis | m | | 2375 | POL | 0.00 | 1 | -0.06 | 20 | -1.20 | | | McAndrew, Robert | | | 1876 | SCO | 0.50 | 1 | -0.07 | 20 | -1.40 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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